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1. Seam entity contains null values after page refresh    stackoverflow.com

I'm using Seam 2.2.2, and I have a problem very similar to this one: Why do my Entities become unmanaged after two calls? The difference is that I'm already doing one of ...

2. Caused by: org.hibernate.AssertionFailure: null id in com.o...    seamframework.org

Hello:- I am having a problem during signing up the user. I have two screens 1 login screen. and 2nd Signup screen. When I go directly to signup screen it creates the user on valid entries. But when ever I redirect my self from login screen to signup screen I got following exception